Square.



No. 871,117.. Q PATENTED NOV. 19, 1907.

' S. O. FINNEY.

SQUARE,

APPLICATION FILED MAR. 27. 1907.

187i M use:

SAMUEL O. FINNEY, OF BREADYSVILLE, PENNSYLVANIA.

SQUARE Specification of Letters Patent.

Patented Nov. 19, 1907.

Application filed March 27. 1907- Serial No. 364;.766.

T 0 all whom'it may concern:

Be it known that I, SAMUE O. FINNEY, a citizen of the United States,residing at Breadysville, in the county of Bucks and State ofPennsylvania, have invented a new and useful Square; and I do herebydeclare the following to be a full, clear, and exact description of theinvention, such as will en able others skilled in the art to which itappertains to make and use the same.

This invention relates to a square, having primarily and essentially forits object to provide a connection between the .two right angledportions thereof, of such peculiar construction, that the two saidportions are readily connected together, so as to prevent displacementof either, and to provide a true square; this square is to bemanufactured of any suitable material, preferably metal of any kind. Oneof the said portions may be in the form of a thin blade if desired, butpreferably the square is to be manufactured of solid steel, of uniformthickness, and by this peculiar connection the two portions of thesquare may be readily disconnected, so as to occupy a small amount ofspace in the mechanics toolchest. The square may be provided withgraduations, and the propertions of the square may be of any desireddimensions, suitable for the manufacture of the device. j

This invention comprises further objects and combinations of elementswhich will be hereinafter more fully described, shown in theaccompanying drawings, and the novel features thereof will be pointedout by the appended claims.

To obtain a full and correct understanding of the details ofconstruction, combinations of features, elements and advantages,reference is to be had to the hereinafter set forth description and theaccompanying drawings in connection therewith, wherein Figure 1 isa-perspective view of the square. Fig. 2 is a perspective view of thetwofportions of the square, in readiness to be connected together,looking downward thereon. Fig. 3 is a perspective view of the squareshowing the two portions thereof disposed similar to that shown in Fig.2, looking upward. Fig. 4 is a sectional view on line l4 of Fig. 1.

Making renewed reference to the acco1npanying drawings, wherein similarreference characters indicate corresponding parts in the severalillustrations, by figures, 1 and 2 designate two portions of the square,the portion 1 having a tapered recess 3, one wall 4 of which is slightlyinclined, as shown; the walls of this recess are provided with a groove5, about its entirety, for the purpose of receiving a supplementaltongue 6, of the main tongue 7, of the portion 2, which tongues 6 and 7upon one edge thereof, as at S, are slightly tapered to correspond withthe wall 4, so as to provide a ready connection of the portions of thesquare, as will be evident from the drawings.

At the termination of the supplemental tongue upon each edge of theportion 2 is a shoulder 9 to form a solid abutment or bearing againstwhich the portion 1 will contact, when the said portions are connected,thereby obviating all chances of changing the position of the twoportions of the square. One of these shoulders extends further,laterally, than the other, as at 10, as clearly shown.

The portion 1 is provided upon the face, opposite the face having therecess 3, with a slight recess 11, while the portion 2 upon the facecorresponding to that of the portion 1, is provided with a short tongue12 to be received. by the recess 11 this construction serves as areinforcement of strength in every direction.

The main tongue and the tongue 12 form a groove 13 designed to receive ashort tongue 14, of the portion 1 formed by the recess 11, as will beclearly seen in the drawings; the two portions of the square aresecurely fastened together by means of a suitable screw 15, or they maybe fastened by any other suitable means, if desired.

The tapering portion of the main tongue, and of the wall of the recess 3provides a tight connection between the two portions of the square, thatis when they are gradually connected together, and this tapering construction also obviates the danger of strain ing the connection, whenthe mechanic is in the act of releasing or disconnecting the twoportions of the square, for cleaning purposes.

It is to be understood that various changes and modifications may beemployed in the construction and embodiment thereof, combinations offeatures, and elements, without in any way departing from the spirit andscope of the invention covered by the claims thereof; it beingunderstood that whatever variations or modifications are employed mustfall Within the scope of the appended claims.

From the foregoing, the essential features,

elements and the operation of the device, to lgular grooved recess Whilethe other portion gether with the simplicity thereof, will be isprovided with a main and supplemental clearly apparent, and, whenmanufactured l tongue to be received by said grooved recess, inaccordance with the invention, an ineX- i and meansforfasteningtheportions together. 15 pensive market will be easilyobtained there- In testimony whereof I have signed rny for. name to thisspecification in the presence of Having thus fully described theinvention, two subscribing Witnesses. what is claimed as new and usefulby the pro- I SAMUEL C; FINNEY. tection of Letters Patent, is Witnesses:

In a square, the combination of the two DAVID SLACK, portions thereof;one of which has a rectan- JOHN S. MERRIGK.

